CaratHunter
Plans
Heart|Natural|GIA

1.20ct G SI1 Heart Natural Diamond

FR • G/SI1 • GIA 2537584062

Certificate GIA 2537584062

Diamond specifications and retailer prices

From £1,922 GBP
As of November 6, 2026
Save £2,082 GBP (52%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,005 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2537584062. Listed at 10 retailers as of November 5, 2026, with prices from £1,922 to £4,005, a £2,082 spread on the same certified stone. NZ Jewellers lists it at £4,005. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
G
Colour
SI1
Clarity
Fair
Cut (retailer stated)

Specifications

Cut (retailer stated)Fair
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2537584062
Dimensions7.01 × 5.98 × 3.88 mm
L/W Ratio1.17
Top View
7.01 mm5.98 mm1.20 ctG / SI1
OriginNatural
CutFair
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2537584062
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £4,005 GBP|Low: £1,846 GBP|High: £4,602 GBP|Avg: £2,581 GBP|-11.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10£1,922 GBP
Retailer 3£2,029 GBP
Retailer 9£2,082 GBP
Retailer 7£2,162 GBP
Retailer 2£2,229 GBP
Retailer 6£2,297 GBP
Retailer 5£2,300 GBP
Retailer 8£2,421 GBP
Retailer 4£3,833 GBP
NZ Jewellers£4,005 GBP

37 data points across 10 retailers

10 retailers£1,922 GBP to £4,005 GBP

B+
Cheapest Retailer
-
£1,922 GBP
Final sale: no returns
B
Retailer 2
-
£2,029 GBP
View
B
Retailer 3
-
£2,082 GBP
View
B
Retailer 4
-
£2,162 GBP
View
B
Retailer 5
-
£2,229 GBP
View
B
Retailer 6
-
£2,297 GBP
View
B
Retailer 7
-
£2,300 GBP
View
B
Retailer 8
-
£2,421 GBP
View
C
Retailer 9
-
£3,833 GBP
View
Most Expensive
C
NZ Jewellers
2b5ff1b3-3144-42bc-bd3c-245abf3753ac · Nov 5
£4,005 GBP
$5,360 USD
View
9 more retailers have this diamond
Prices start from £1,922 GBPSave up to £2,082 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.20ct Heart
£1,922 GBP